28610825315 has 4 divisors (see below), whose sum is σ = 34332990384. Its totient is φ = 22888660248.

The previous prime is 28610825311. The next prime is 28610825351. The reversal of 28610825315 is 51352801682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28610825315 - 2² = 28610825311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28610825311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861082527 + ... + 2861082536.

It is an arithmetic number, because the mean of its divisors is an integer number (8583247596).

Almost surely, 2^28610825315 is an apocalyptic number.

28610825315 is a deficient number, since it is larger than the sum of its proper divisors (5722165069).

28610825315 is an equidigital number, since it uses as much as digits as its factorization.

28610825315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722165068.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 28610825315 in words is "twenty-eight billion, six hundred ten million, eight hundred twenty-five thousand, three hundred fifteen".